CN104346853A - Safety control device based on optical code - Google Patents
Safety control device based on optical code Download PDFInfo
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- CN104346853A CN104346853A CN201410501058.4A CN201410501058A CN104346853A CN 104346853 A CN104346853 A CN 104346853A CN 201410501058 A CN201410501058 A CN 201410501058A CN 104346853 A CN104346853 A CN 104346853A
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Abstract
The invention discloses a safety control device based on an optical code. The safety control device comprises an optical cipherer (1) and a receiving controller (2), wherein the optical cipherer (1) comprises an optical code generation unit (11) and a power supply control unit (12) which are connected with each other; the receiving controller (2) comprises a power supply unit (21) and an optical code receiving unit (22), a control driving unit (23) and an alarming unit (24) which are connected in sequence; the power supply unit (21) is connected with the optical code receiving unit (22), the control driving unit (23) and the alarming unit (24) respectively; the optical code generation unit (11) is opposite to the optical code receiving unit (22) when the optical cypherer (1) and the receiving controller (2) are matched to realize unlocking. The safety control device has the advantages of high antijamming capability, extremely high safety, convenience in use, low cost and wide application range.
Description
Technical field
The present invention relates to safety control technology field, be specifically related to a kind of safety control based on light password.
Background technology
In order to ensure the safety of the controlled devices such as such as proof box, door, automobile, machine or main equipment, people generally can adopt cryptographic methods, and only having correct password could start controlled device.The pin mode generally adopted has mechanical, electrical type, magnetic card type, fingerprint class and wireless electron remote control cipher case etc.Various pin mode has oneself merits and demerits.Such as mechanical cipher is more stable, durable, and does not need power supply, slow, the complex operation but method of operating is got up.Electronic cipher has the advantages such as operation is fast, password can be changed at any time, but stability and durability are not as mechanical cipher.Magnetic card type carries with easy to use, but requires higher to IC-card, runs into strong magnetic and then easily loses efficacy.Fingerprint form strong security, easy to use, but the humidity of opponent and placement location require relatively tighter, easily cause recognition failures.Some mode control device cipher coding data capacity is limited, and password easily repeats, and the password of magnetic card and wireless electron remote control mode is easily replicated, cracks, and wireless electron remote control mode is also easily by external interference, and some mode then cost is higher.Therefore, still need to find the safety control that a kind of antijamming capability is strong, security is high, easy to use, cost is low.
Summary of the invention
For the problems referred to above of prior art, the technical problem to be solved in the present invention is to provide that a kind of antijamming capability is strong, security is high, easy to use, cost is low, the safety control based on light password of applied range.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is as follows:
A kind of safety control based on light password, comprise light scrambler and receive controller, described smooth scrambler comprises interconnective smooth password generating unit and power control unit, described reception controller comprises power supply unit and the light password acceptance unit be connected successively, controls driver element and alarm unit, described power supply unit respectively with light password acceptance unit, control driver element, alarm unit is connected, described smooth password generating unit light scrambler and receive controller coordinate unlock time and light password acceptance unit positioned opposite.
Preferably, described smooth password generating unit comprises the multiple smooth password light emitting diode be arranged in parallel, and the described smooth password light emitting diode encoding state be all in series with for being controlled light password light emitting diode by off operating mode is bright encoding state or the first company's encoding linker putting out encoding state, described smooth password acceptance unit comprises the multiple smooth password photodiode be arranged in juxtaposition, described smooth password photodiode is all in series with second and connects encoding linker and the 3rd encoding linker, described smooth password photodiode and light password light emitting diode one_to_one corresponding, described smooth password photodiode is identical with the encoding state of corresponding light password light emitting diode, all described encoding states are that the light password photodiode of bright encoding state connects encoding linker by second, 3rd encoding linker is connected in series the responsive branch road of rear formation light password, described power supply unit, the responsive branch road of light password, be connected successively with control driver element.
Preferably, described multiple smooth password light emitting diode arrangement is arranged linearly, cruciform, circle, arc, fan-shaped, polygon or multirow structure, it is identical that described multiple smooth password photodiode and described multiple smooth password light emitting diode arrange the shape of arranging.
Preferably, described smooth password light emitting diode is laser diode or infrarede emitting diode.
Preferably, described control driver element comprises the first amplifying circuit, external unit relay, the first electromagnetic relay and the second resistance, be connected with power supply unit after described smooth password acceptance unit is connected with the second resistant series, the input end of described first amplifying circuit is connected with light password acceptance unit, and the coil of described external unit relay and the coils from parallel connection of coils of the first electromagnetic relay are connected to the output terminal of the first amplifying circuit; Described alarm unit comprises warning tie point, the second amplifying circuit, hummer and the second electromagnetic relay, described warning tie point is connected with power supply unit by the normally closed switch of the first electromagnetic relay, the input end of described second amplifying circuit is connected with warning tie point, the output terminal of described second amplifying circuit is connected with the coils from parallel connection of coils of hummer, the second electromagnetic relay respectively, and described first amplifying circuit is connected with power supply unit by the normally closed switch of the second electromagnetic relay.
Preferably, all described encoding states are that the light password photodiode putting out encoding state is connected with warning tie point after being connected in parallel by second company's encoding linker, the 3rd encoding linker, described warning tie point is also connected with the 3rd resistance, all described encoding states be put out the light password photodiode of encoding state, warning tie point, the 3rd resistant series be connected with power supply unit after connecting.
Preferably, the delay circuit that described smooth password generating unit also comprises pushbutton switch and is connected in parallel with each light password light emitting diode, be connected in series with pushbutton switch while of being connected in parallel rear between described multiple smooth password light emitting diode, described delay circuit comprises the chronotron and delayed alarm lamp that are connected in series; The loop that described warning tie point is connected with power supply unit by the normally closed switch of the first electromagnetic relay is also connected in series with warning photodiode, described warning photodiode light scrambler and receive controller coordinate unlock time and delayed alarm lamp positioned opposite.
Preferably, described power control unit comprises direct supply, control signal photodiode, decoder module and the 3rd amplifying circuit and the first resistance, described direct supply, control signal photodiode, the first resistant series form loop, the positive pole of described control signal photodiode is connected by the input end of decoder module with the 3rd amplifying circuit, and the output terminal of described 3rd amplifying circuit is connected with light password generating unit; Described reception controller also comprises contact-making switch, coder module and control signal light emitting diode, described contact-making switch, coder module are connected with power supply unit after being connected in series with control signal light emitting diode, the conducting when light scrambler, reception controller socket connection of described contact-making switch, make the conducting of described control signal light emitting diode utilizing emitted light signal Trig control signal photodiode, and then make the positive pole conducting of described pushbutton switch and direct supply.
Preferably, described contact-making switch is light pressure and closo switch or magnetic switch, described smooth scrambler and to receive between controller be socket connection structure, the position of the corresponding contact-making switch of described smooth scrambler is provided with protuberance for triggering closed contact-making switch or magnet.
Preferably, the output terminal of described 3rd amplifying circuit is also connected in parallel to the first power supply and exports indicating circuit, and described first power supply exports indicating circuit and is made up of the power light be connected in series and current-limiting resistance; The output terminal of described first amplifying circuit is also connected in parallel to second source and exports indicating circuit, and described second source exports indicating circuit and is made up of the power light be connected in series and current-limiting resistance; Described power supply unit comprises the battery and master switch that are connected in series, the branch road of described battery and master switch series connection is connected in parallel to the 3rd power supply and exports indicating circuit, described 3rd power supply exports indicating circuit and is made up of the power light be connected in series and current-limiting resistance.
The safety control that the present invention is based on light password has following advantage: the safety control that the present invention is based on light password comprises light scrambler and receives controller, light scrambler can be used as " key " and uses, light password generating unit light scrambler and receive controller coordinate unlock time and light password acceptance unit positioned opposite, and the power control unit of light scrambler controls light password generating unit to the luminescence of reception controller, light password acceptance unit sends signal when receiving correct light signal to control driver element, thus by controlling the security control of driver element realization to external unit, if light password acceptance unit is when receiving incorrect light signal, light password acceptance unit drives alarm unit to give the alarm by controlling driver element (or warning photodiode), take full advantage of light signal not by the advantage that external electromagnetic radiation signal affects, and adopt light scrambler carrying light password, people is not needed to remember tediously long password, as long as light scrambler and reception controller are coordinated and can realize safe unblock, proof box can be applicable to, door, automobile, the security control of the external unit such as machine or main equipment, therefore there is antijamming capability strong, security is high, easy to use, cost is low, the advantage of applied range.
Accompanying drawing explanation
Fig. 1 is the basic frame structure schematic diagram of the embodiment of the present invention.
Fig. 2 is the electrical block diagram receiving controller in the embodiment of the present invention.
Fig. 3 is the electrical block diagram of light scrambler in the embodiment of the present invention.
Fig. 4 is the electrical block diagram of control signal light emitting diode in the embodiment of the present invention.
Fig. 5 is the electrical block diagram of power supply unit in the embodiment of the present invention.
Marginal data: 1, light scrambler; 11, light password generating unit; 111, light password light emitting diode; 112, first connects encoding linker; 113, pushbutton switch; 114, chronotron; 115, delayed alarm lamp; 12, power control unit; 121, direct supply; 122, control signal photodiode; 123, decoder module; 124, the 3rd amplifying circuit; 125, the first power supply exports indicating circuit; 126, the first resistance; 2, controller is received; 21, power supply unit; 211, battery; 212, master switch; 213, the 3rd power supply exports indicating circuit; 22, light password acceptance unit; 221, light password photodiode; 222, second connects encoding linker; 223, the 3rd encoding linker; 23, driver element is controlled; 231, the first amplifying circuit; 232, external unit relay; 233, the first electromagnetic relay; 234, second source exports indicating circuit; 235, the second resistance; 24, alarm unit; 241, warning tie point; 242, the second amplifying circuit; 243, hummer; 244, the second electromagnetic relay; 245, warning photodiode; 246, the 3rd resistance; 25, contact-making switch; 26, coder module; 27, control signal light emitting diode.
Embodiment
As shown in Figure 1, the present embodiment comprises light scrambler 1 based on the safety control of light password and receives controller 2, light scrambler 1 comprises interconnective smooth password generating unit 11 and power control unit 12, receive the light password acceptance unit 22 that controller 2 comprises power supply unit 21 and is connected successively, control driver element 23 and alarm unit 24, power supply unit 21 respectively with light password acceptance unit 22, control driver element 23, alarm unit 24 is connected, light password generating unit 11 light scrambler 1 and receive controller 2 coordinate unlock time and light password acceptance unit 22 positioned opposite.The present embodiment comprises light scrambler 1 and receives controller 2, light scrambler 1 can be used as " key " and uses, light password generating unit 11 light scrambler 1 and receive controller 2 coordinate unlock time and light password acceptance unit 22 positioned opposite, and the power control unit 12 of light scrambler 1 controls light password generating unit 11 to the luminescence of reception controller 2, light password acceptance unit 22 sends signal when receiving correct light signal to control driver element 23, thus realizes the security control to external unit by control driver element 23; If light password acceptance unit is when receiving incorrect light signal, light password acceptance unit 22 is by controlling driver element 23(or warning photodiode 245) drive alarm unit 24 to give the alarm, take full advantage of light signal not by the advantage that external electromagnetic radiation signal affects, and adopt light scrambler 1 to carry light password, people is not needed to remember tediously long password, as long as by light scrambler 1 with receive controller 2 and coordinate, therefore have that antijamming capability is strong, security is high, easy to use, cost is low, the advantage of applied range.
As shown in Figures 2 and 3, light password generating unit 11 comprises the multiple smooth password light emitting diode 111(light password light emitting diode 111#1 ~ 111#n be arranged in parallel), light password light emitting diode 111 encoding state be all in series with for being controlled light password light emitting diode 111 by off operating mode is that bright encoding state or the first company encoding linker 112(first putting out encoding state connect encoding linker 112#1 ~ 112#n), light password acceptance unit 22 comprises the multiple smooth password photodiode 221(light password photodiode 221#1 ~ 221#n be arranged in juxtaposition), light password photodiode 221 is all in series with second and connects encoding linker 222 and the 3rd encoding linker 223, light password photodiode 221 and light password light emitting diode 111 one_to_one corresponding, light password photodiode 221 is identical with the encoding state of corresponding light password light emitting diode 111, all encoding states are that the light password photodiode 221 of bright encoding state connects encoding linker 222 by second, 3rd encoding linker 223 is connected in series the responsive branch road of rear formation light password, power supply unit 21, the responsive branch road of light password, be connected with control driver element 23.Because light password light emitting diode 111 encoding state be all in series with for being controlled light password light emitting diode 111 by off operating mode is bright encoding state or the first company's encoding linker 112 putting out encoding state, therefore the code capacity of light scrambler 1 is the n power (n is the number of light password light emitting diode 111) of 2, the dot matrix LEDs of 8 × 4 is such as adopted to build light password light emitting diode 111, then group/cording quantity can reach 42.9 hundred million, therefore coding not easily repeats and is cracked, as long as and wherein any one connection error will cause light password acceptance unit 22 or warning photodiode 245 to drive alarm unit 24 to report to the police, therefore security is high.See Fig. 2, light password light emitting diode 111#1 and first connects encoding linker 112#1 and is connected in series, light password light emitting diode 111#2 and first connects encoding linker 112#2 and is connected in series ..., light password light emitting diode 111#n and first connects encoding linker 112#n and is connected in series; See Fig. 3, light password photodiode 221#1 is in series with second and connects encoding linker 222#1 and the 3rd encoding linker 223#1, light password photodiode 221#2 is in series with second and connects encoding linker 222#2 and the 3rd encoding linker 223#2,, light password photodiode 221#n is in series with second and connects encoding linker 222#n and the 3rd encoding linker 223#n.The present embodiment specifically adopts the dot matrix LEDs of 8 × 4 to build light password light emitting diode 111, and therefore n value is 32, and is expressed as 1 with bright encoding state, puts out encoding state and is expressed as 0.Such as make to build light password " 10001000000000000001000010000000 " with light password light emitting diode 111.According to above-mentioned smooth password, light password light emitting diode 111#1, light password light emitting diode 111#5, light password light emitting diode 111#20, light password light emitting diode 111#25 are bright encoding state, accordingly, the encoding state of light password photodiode 221#1, light password photodiode 221#5, light password photodiode 221#20, light password photodiode 221#25 is also bright encoding state.
In the present embodiment, the present embodiment specifically adopts the dot matrix LEDs of 8 × 4 to build light password light emitting diode 111, therefore multiple smooth password light emitting diode 111 arranged is rectangular, in addition can as required arranged linearly, cruciform, circle, arc, fan-shaped, polygon (such as triangle, rhombus, trapezoidal, rhomboid etc.) or many row (column) structure, multiple smooth password photodiode 221 is identical with the shape of multiple smooth password light emitting diode 111 arranged.Therefore, multiple smooth password photodiode 221 light password that can realize light password light emitting diode 111, light password photodiode 221 between identical with the shape of multiple smooth password light emitting diode 111 arranged is only had to send and receive, be equivalent to and increase by one password defence line, such light password is more difficult to be cracked, and makes security higher.
In the present embodiment, light password light emitting diode 111 is laser diode, and laser diode has the advantage that one-way is good, antijamming capability is strong.In addition, light password light emitting diode 111 also can adopt infrarede emitting diode as required, and the infrared signal front-to-back ratio laser diode of infrarede emitting diode is poor, but still can realize directional transmissions, just scope is slightly large, and position remote-controlled is comparatively speaking relatively more flexible.
As shown in Figure 2, control driver element 23 and comprise the first amplifying circuit 231, external unit relay 232, first electromagnetic relay 233 and the second resistance 235, light password acceptance unit 22 is connected with power supply unit 21 after being connected in series with the second resistance 235, the input end of the first amplifying circuit 231 is connected with light password acceptance unit 22, and the coil of external unit relay 232 and the coils from parallel connection of coils of the first electromagnetic relay 233 are connected to the output terminal of the first amplifying circuit 231; Alarm unit 24 comprises warning tie point 241, second amplifying circuit 242, hummer 243 and the second electromagnetic relay 244, warning tie point 241 is connected with power supply unit 21 by the normally closed switch of the first electromagnetic relay 233, the input end of the second amplifying circuit 242 is connected with warning tie point 241, the output terminal of the second amplifying circuit 242 is connected with the coils from parallel connection of coils of hummer 243, second electromagnetic relay 244 respectively, and the first amplifying circuit 231 is connected with power supply unit 21 by the normally closed switch of the second electromagnetic relay 244.The present embodiment controls the power supply of the first amplifying circuit 231 by the second electromagnetic relay 244, thus guarantee after alarm unit 24 receives alerting signal can the power supply of cutting-off controlling driver element 23 at once.
In the present embodiment, all encoding states are that the light password photodiode 221 putting out encoding state is connected with warning tie point 241 after being connected in parallel by second company's encoding linker 222, the 3rd encoding linker 223, warning tie point 241 is also connected with the 3rd resistance 246, all encoding states be put out the light password photodiode 221 of encoding state, warning tie point 241, the 3rd resistance 246 is connected with power supply unit 21 after being connected in series.Because all encoding states are that the light password photodiode 221 putting out encoding state is connected with warning tie point 241, thus the detection that can realize the light password photodiode 221 putting out encoding state, if the light password photodiode 221 putting out encoding state is luminous, then can produce loop current at warning tie point 241, trigger alarm unit 24 is reported to the police and is controlled the first amplifying circuit 231 power-off immediately, and security is better.
As shown in Figures 2 and 3, the delay circuit that light password generating unit 11 also comprises pushbutton switch 113 and is connected in parallel with each light password light emitting diode 111, be connected in series with pushbutton switch 113 while of being connected in parallel rear between multiple smooth password light emitting diode 111, delay circuit comprises the chronotron 114 and delayed alarm lamp 115 that are connected in series; The loop that warning tie point 241 is connected with power supply unit 21 by the normally closed switch of the first electromagnetic relay 233 is also connected in series with warning photodiode 245, warning photodiode 245 light scrambler 1 and receive controller 2 coordinate unlock time and delayed alarm lamp 115 positioned opposite.Acting as of chronotron 114 makes delayed alarm lamp 115 postpone to start for 0.1 second after pressing the button switch 113, sometimes the light password light emitting diode 111 that there is bright encoding state due to light password generating unit 11 have do not work and the error coded that all do not work of the light password light emitting diode 111 putting out encoding state, in this case light password light emitting diode 111 can not trigger alarm unit 24, and delayed alarm lamp 115 then postpones to start warning photodiode 245 in 0.1 second.Simultaneously, warning photodiode 245 is also connected in series with due on the loop that warning tie point 241 is connected with power supply unit 21 by the normally closed switch of the first electromagnetic relay 233, if light password acceptance unit 22 receives correct light password, then the second amplifying circuit 242 conducting, the power light that second source exports indicating circuit 234 is bright, prompting external unit relay 232 normally works, the coil 233#1 energising work of the first electromagnetic relay 233 simultaneously, the normally closed switch 233#2 of the first electromagnetic relay 233 in alarm unit 24 is disconnected, make warning photodiode 245 conducting also can not trigger alarm unit 24 even if delayed alarm lamp 115 started afterwards at 0.1 second.In the present embodiment, chronotron 114 adopts NE 555 delay circuit to realize.
In the present embodiment, after light password acceptance unit 22 receives the light password of correct coding, the light password photodiode 221 trigging control driver element 23 being in bright decoded state normally works.Incorrect coding has three kinds of situations, the first situation is that it is bright for should be the light password photodiode 221 putting out encoding state wrong, and the light password photodiode 221 at this moment receiving error coded drives hummer 243 by warning tie point 241, second amplifying circuit 242; The second situation be should be bright encoding state light password photodiode 221 mistake for putting out because 115, delayed alarm lamp postpones to start warning photodiode 245 in 0.1 second; The third situation be existing should be put out encoding state light password photodiode 221 mistake for bright, also have light password photodiode 221 mistake that should be bright encoding state for putting out, this situation light password photodiode 221 that receive error coded the same as the first situation drives hummer 243 by warning tie point 241, second amplifying circuit 242.
As shown in Figure 3, power control unit 12 comprises direct supply 121, control signal photodiode 122, decoder module 123 and the 3rd amplifying circuit 124 and the first resistance 126, the series connection of direct supply 121, control signal photodiode 122, first resistance 126 forms loop, the positive pole of control signal photodiode 122 is connected by the input end of decoder module 123 with the 3rd amplifying circuit 124, and the output terminal of the 3rd amplifying circuit 124 is connected with light password generating unit 11; Receive controller 2 and also comprise contact-making switch 25, coder module 26 and control signal light emitting diode 27, be connected with power supply unit 21 after contact-making switch 25, coder module 26 are connected in series with control signal light emitting diode 27, contact-making switch 25 conducting when light scrambler 1, reception controller 2 socket connection, make the conducting of control signal light emitting diode 27 utilizing emitted light signal Trig control signal photodiode 122, thus make the positive pole conducting of pushbutton switch 113 and direct supply 121.The light signal that control signal light emitting diode 27 is launched is the signal of encoding through coder module 26, export decoder module 123 to after control signal photodiode 122 receiving optical signals to decode, by control signal light emitting diode 27, control signal photodiode 122 can realize receiving controller 2 and trigger the active of light scrambler 1, prevent the code signal of light scrambler 1 stolen, the energy consumption of light scrambler 1 can also be saved, and the control signal of this triggering is by coder module 26 and decoder module 123 safe handling, improve and receive controller 2, the security of signal between light scrambler 1, security is higher, due to control signal light emitting diode 27 light scrambler 1 and receive controller 2 coordinate unlock time and control signal photodiode 122 positioned opposite, control signal light emitting diode 27 is directed be emitted to control signal photodiode 122 and can not at external reception, and only have control signal light emitting diode 27, control signal photodiode 122 to align could to receive, thus the difficulty that control signal is stolen can be improved.In the present embodiment, coder module 26 adopts PT2262IR coding circuit, and decoder module 123 adopts PT2272 decoding circuit, and control signal light emitting diode 27 adopts laser diode.
In the present embodiment, contact-making switch 25 is light pressure and closo switch or magnetic switch, light scrambler 1 and receive controller 2 for socket connection structure, the position of the corresponding contact-making switch of light scrambler 1 25 is provided with protuberance for triggering closed contact-making switch 25 or magnet.Socket connection structure uses simple and stable, and it is reliable and stable to guarantee that light password between light password light emitting diode 111, light password photodiode 221 sends and receives, simultaneously because contact-making switch 25 be gently pressure and closo switch or magnetic switch, in light scrambler 1, the position of corresponding contact-making switch 25 is provided with projection for triggering closed contact-making switch 25 or magnet, when light scrambler 1 with when receiving controller 2 socket connection, automatically can trigger contact-making switch 25 to make control signal light emitting diode 27 produce signal Trig control signal photodiode 122 to make the 3rd amplifying circuit 124 output terminal conducting, be communicated with from making pushbutton switch 113 left end of light password generating unit 11 with power supply, light scrambler 1 is separated with reception controller 2, then contact-making switch 25 closing control signal light emitting diode 27 is to carry out power saving, thus can the consumption of save power, but also can prevent from directly pressing the button switch 113 and the luminescence of light password light emitting diode 111 is recorded so that leak light password easily.The present embodiment in use, light scrambler 1 must insert to receive after controller 2 and press the button switch 113 and light password light emitting diode 111 just can be made luminous, if light scrambler 1 does not insert receive controller 2, also can not be luminous even if press the button the smooth password light emitting diode 111 of switch 113, be in closed condition because power control unit 12 does not also trigger and light password light emitting diode 111 is not connected with power supply.Such object presses the button switch 113 after preventing light scrambler 1 to be stolen directly to copy light password.
As shown in Fig. 2, Fig. 3 and Fig. 5, the output terminal of the 3rd amplifying circuit 124 is also connected in parallel to the first power supply output indicating circuit 125, first power supply output indicating circuit 125 and is made up of the power light be connected in series and current-limiting resistance; The output terminal of the first amplifying circuit 231 is also connected in parallel to second source and exports indicating circuit 234, and second source exports indicating circuit 234 and is made up of the power light be connected in series and current-limiting resistance; Power supply unit 21 comprises the battery 211 and master switch 212 that are connected in series, the branch road that battery 211 and master switch 212 are connected is connected in parallel to the 3rd power supply output indicating circuit the 213, three power supply output indicating circuit 213 to be made up of the power light be connected in series and current-limiting resistance.First power supply exports indicating circuit 125, second source exports indicating circuit 234, the 3rd power supply exports the "on" position that indicating circuit 213 all can understand institute's place in circuit easily, uses convenient, debugs and repairs simpler.
The present embodiment is as follows based on the course of work of the safety control of light password:
S1) light scrambler 1 is inserted reception controller 2, this time scrambler 1 meeting forceful contact switch 25, make contact-making switch 25 conducting when light scrambler 1, reception controller 2 socket connection.
S2) contact-making switch 25 is communicated with rear control signal light emitting diode 27 circuit turn-on, produces scrambler control signal at coder module 26 drive control signal light emitting diode 27.
S3) decode through decoder module 123 after the control signal photodiode 122 of power control unit 12 receives the light signal of control signal light emitting diode 27, then control the 3rd amplifying circuit 124 conducting be made up of two-stage triode, light password generating unit 11 is in and treats duty.
S4) press the button switch 113, light password generating unit 11 is communicated with power supply, and the light password light emitting diode 111#1 ~ 111#n of light password generating unit 11 produces the light code signal after encoding.
S5) the light password photodiode 221#1 ~ #n of light password acceptance unit 22 receives light code signal; Now, following situation is had respectively according to the difference of reception result:
S5.1) light code signal is correctly received.Now, light password acceptance unit 22 normally, the first amplifying circuit 231 is started working, the coil electricity of external unit relay 232, thus controls often opening or normally closed switch action of external unit relay 232, realizes the control to external unit; The power light that second source exports indicating circuit 234 is bright, prompting external unit relay 232 normally works, the coil 233#1 energising work of the first electromagnetic relay 233 simultaneously, the normally closed switch 233#2 of the first electromagnetic relay 233 in alarm unit 24 is disconnected, makes warning photodiode 245 conducting also can not trigger alarm unit 24 even if delayed alarm lamp 115 started afterwards at 0.1 second.
S5.2) wrong light code signal is received, now be divided into two kinds of situation: I) should be put out encoding state light password photodiode 221 mistake for bright, or existing should be put out encoding state light password photodiode 221 mistake for bright, also light password photodiode 221 mistake that should be bright encoding state is had for putting out, because all encoding states are that the light password photodiode 221 putting out encoding state is connected with warning tie point 241, therefore warning tie point 241 has electric current to pass through, and makes the second amplifying circuit 242 drive hummer 243 to report to the police.II) should be light password photodiode 221 mistake of bright encoding state for putting out, then delayed alarm lamp 115 at 0.1 second afterwards start make warning photodiode 245 conducting, make the second amplifying circuit 242 drive hummer 243 to report to the police.Meanwhile, the coil 244#1 energising work of the second electromagnetic relay 244, makes the normally closed switch 244#2 of the second electromagnetic relay 244 disconnect, thus the power supply controlling the first amplifying circuit 231 in driver element 23 is disconnected and can not be worked.
The above is only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, and all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. the safety control based on light password, it is characterized in that: comprise light scrambler (1) and receive controller (2), described smooth scrambler (1) comprises interconnective smooth password generating unit (11) and power control unit (12), the light password acceptance unit (22) that described reception controller (2) comprises power supply unit (21) and is connected successively, control driver element (23) and alarm unit (24), described power supply unit (21) respectively with light password acceptance unit (22), control driver element (23), alarm unit (24) is connected, described smooth password generating unit (11) light scrambler (1) and receive controller (2) coordinate unlock time and light password acceptance unit (22) positioned opposite.
2. the safety control based on light password according to claim 1, it is characterized in that: described smooth password generating unit (11) comprises the multiple smooth password light emitting diode (111) be arranged in parallel, described smooth password light emitting diode (111) encoding state be all in series with for being controlled light password light emitting diode (111) by off operating mode is bright encoding state or first company's encoding linker (112) of putting out encoding state, described smooth password acceptance unit (22) comprises the multiple smooth password photodiode (221) be arranged in juxtaposition, described smooth password photodiode (221) is all in series with second and connects encoding linker (222) and the 3rd encoding linker (223), described smooth password photodiode (221) and light password light emitting diode (111) one_to_one corresponding, described smooth password photodiode (221) is identical with the encoding state of corresponding light password light emitting diode (111), all described encoding states are that the light password photodiode (221) of bright encoding state connects encoding linker (222) by second, 3rd encoding linker (223) is connected in series the responsive branch road of rear formation light password, described power supply unit (21), the responsive branch road of light password, control driver element (23) to be connected successively.
3. the safety control based on light password according to claim 2, it is characterized in that: described multiple smooth password light emitting diode (111) arranged linearly, cruciform, circle, arc, fan-shaped, polygon or multirow structure, described multiple smooth password photodiode (221) is identical with the shape of described multiple smooth password light emitting diode (111) arranged.
4. the safety control based on light password according to claim 3, is characterized in that: described smooth password light emitting diode (111) is laser diode or infrarede emitting diode.
5. according to the safety control based on light password in Claims 1 to 4 described in any one, it is characterized in that: described control driver element (23) comprises the first amplifying circuit (231), external unit relay (232), first electromagnetic relay (233) and the second resistance (235), be connected with power supply unit (21) after described smooth password acceptance unit (22) and the second resistance (235) are connected in series, the input end of described first amplifying circuit (231) is connected with light password acceptance unit (22), the coil of described external unit relay (232) and the coils from parallel connection of coils of the first electromagnetic relay (233) are connected to the output terminal of the first amplifying circuit (231), described alarm unit (24) comprises warning tie point (241), second amplifying circuit (242), hummer (243) and the second electromagnetic relay (244), described warning tie point (241) is connected with power supply unit (21) by the normally closed switch of the first electromagnetic relay (233), the input end of described second amplifying circuit (242) is connected with warning tie point (241), the output terminal of described second amplifying circuit (242) respectively with hummer (243), the coils from parallel connection of coils of the second electromagnetic relay (244) connects, described first amplifying circuit (231) is connected with power supply unit (21) by the normally closed switch of the second electromagnetic relay (244).
6. the safety control based on light password according to claim 5, it is characterized in that: all described encoding states are that the light password photodiode (221) putting out encoding state connects encoding linker (222) by second, be connected with warning tie point (241) after 3rd encoding linker (223) is connected in parallel, described warning tie point (241) is also connected with the 3rd resistance (246), all described encoding states are the light password photodiode (221) putting out encoding state, warning tie point (241), be connected with power supply unit (21) after 3rd resistance (246) is connected in series.
7. the safety control based on light password according to claim 6, it is characterized in that: the delay circuit that described smooth password generating unit (11) also comprises pushbutton switch (113) and is connected in parallel with each light password light emitting diode (111), be connected in series with pushbutton switch (113) while of being connected in parallel rear between described multiple smooth password light emitting diode (111), described delay circuit comprises the chronotron (114) and delayed alarm lamp (115) that are connected in series; The loop that described warning tie point (241) is connected with power supply unit (21) by the normally closed switch of the first electromagnetic relay (233) is also connected in series with warning photodiode (245), described warning photodiode (245) light scrambler (1) and receive controller (2) coordinate unlock time and delayed alarm lamp (115) positioned opposite.
8. the safety control based on light password according to claim 7, it is characterized in that: described power control unit (12) comprises direct supply (121), control signal photodiode (122), decoder module (123) and the 3rd amplifying circuit (124) and the first resistance (126), described direct supply (121), control signal photodiode (122), first resistance (126) series connection forms loop, the positive pole of described control signal photodiode (122) is connected with the input end of the 3rd amplifying circuit (124) by decoder module (123), the output terminal of described 3rd amplifying circuit (124) is connected with light password generating unit (11), described reception controller (2) also comprises contact-making switch (25), coder module (26) and control signal light emitting diode (27), described contact-making switch (25), be connected with power supply unit (21) after coder module (26) and control signal light emitting diode (27) are connected in series, described contact-making switch (25) is in light scrambler (1), conducting during reception controller (2) socket connection, make photodiode (122) conducting of described control signal light emitting diode (27) utilizing emitted light signal Trig control signal, and then make the positive pole conducting of described pushbutton switch (113) and direct supply (121).
9. the safety control based on light password according to claim 8, it is characterized in that: described contact-making switch (25) is light pressure and closo switch or magnetic switch, described smooth scrambler (1) and to receive between controller (2) be socket connection structure, the position of the corresponding contact-making switch of described smooth scrambler (1) (25) is provided with protuberance for triggering closed contact-making switch (25) or magnet.
10. the safety control based on light password according to claim 9, it is characterized in that: the output terminal of described 3rd amplifying circuit (124) is also connected in parallel to the first power supply and exports indicating circuit (125), described first power supply exports indicating circuit (125) and is made up of the power light be connected in series and current-limiting resistance; The output terminal of described first amplifying circuit (231) is also connected in parallel to second source and exports indicating circuit (234), and described second source exports indicating circuit (234) and is made up of the power light be connected in series and current-limiting resistance; Described power supply unit (21) comprises the battery (211) and master switch (212) that are connected in series, the branch road that described battery (211) and master switch (212) are connected is connected in parallel to the 3rd power supply and exports indicating circuit (213), described 3rd power supply exports indicating circuit (213) and is made up of the power light be connected in series and current-limiting resistance.
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| CN201410501058.4A CN104346853B (en) | 2014-09-26 | 2014-09-26 | A kind of safety control based on light password |
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| CN201410501058.4A CN104346853B (en) | 2014-09-26 | 2014-09-26 | A kind of safety control based on light password |
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| CN104346853B CN104346853B (en) | 2016-06-15 |
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| CN104809792A (en) * | 2015-05-09 | 2015-07-29 | 长春理工大学 | LD (Laser Diode)-based digital optical code unlocking system |
| CN106600787A (en) * | 2016-12-22 | 2017-04-26 | 长沙理工大学 | Control device based on light signal and PSD (Position Sensitive Device) |
| CN108035625A (en) * | 2017-12-06 | 2018-05-15 | 贾梦辉 | A kind of laser anti-theft lock of imitative RNA codings |
| CN109215175A (en) * | 2017-07-03 | 2019-01-15 | 杭州峙汇科技有限公司 | Pumped FIR laser Electronic Coding lock |
| CN111119590A (en) * | 2018-11-01 | 2020-05-08 | 浙江星星冷链集成股份有限公司 | Non-contact encryption electric mortise lock based on optical signal communication |
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